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Issue 32, 2016
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Multigrain electrospun nickel doped lithium titanate nanofibers with high power lithium ion storage

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Abstract

Novel in situ nickel doped 1-D lithium titanate nanofibers (Li4Ti5−xNixO12, where x = 0, 0.05 and 0.1) have been successfully synthesized using a facile electrospinning process. Physical characterization reveals that nickel is homogeneously incorporated into the lattice of lithium titanate nanofibers (LTONFs) which significantly improves their properties yielding outstanding electrochemical performance in a lithium ion battery at high power rates and significant reduction in the voltage gap between the oxidation and reduction peaks. A capacity of 190 mA h g−1 has been obtained at 0.2C for the 10% nickel doped nanofibers (Ni-LTONF10), which is higher than the theoretical capacity of pristine lithium titanate (175 mA h g−1) and they also show superior rate capability resulting in 63 mA h g−1 obtained at 50C, which is 20 times higher than that of un-doped pristine LTONFs and lithium titanate nanoparticles (LTONPs). Finally, a hybrid supercapacitor is fabricated using Ni-LTONF10, showing superior energy density at high power density.

Graphical abstract: Multigrain electrospun nickel doped lithium titanate nanofibers with high power lithium ion storage

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Publication details

The article was received on 15 May 2016, accepted on 04 Jul 2016 and first published on 05 Jul 2016


Article type: Paper
DOI: 10.1039/C6TA04046B
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Citation: J. Mater. Chem. A, 2016,4, 12638-12647

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    Multigrain electrospun nickel doped lithium titanate nanofibers with high power lithium ion storage

    S. Abureden, F. M. Hassan, G. Lui, W. Ahn, S. Sy, A. Yu and Z. Chen, J. Mater. Chem. A, 2016, 4, 12638
    DOI: 10.1039/C6TA04046B

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